US7844010B2 - Closed loop feedback system for improved down link performance - Google Patents
Closed loop feedback system for improved down link performance Download PDFInfo
- Publication number
- US7844010B2 US7844010B2 US11/068,855 US6885505A US7844010B2 US 7844010 B2 US7844010 B2 US 7844010B2 US 6885505 A US6885505 A US 6885505A US 7844010 B2 US7844010 B2 US 7844010B2
- Authority
- US
- United States
- Prior art keywords
- station
- beams
- antenna
- signal
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime, expires
Links
- 238000000034 method Methods 0.000 claims abstract description 60
- 230000004044 response Effects 0.000 claims abstract description 25
- 230000002238 attenuated effect Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 41
- 238000001228 spectrum Methods 0.000 description 47
- 238000007726 management method Methods 0.000 description 41
- 230000011664 signaling Effects 0.000 description 33
- 230000000875 corresponding effect Effects 0.000 description 27
- 239000011159 matrix material Substances 0.000 description 23
- 238000005259 measurement Methods 0.000 description 21
- 230000001934 delay Effects 0.000 description 16
- 230000008569 process Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 15
- 230000005855 radiation Effects 0.000 description 15
- 230000007480 spreading Effects 0.000 description 12
- 238000012549 training Methods 0.000 description 12
- 230000003111 delayed effect Effects 0.000 description 10
- 238000005562 fading Methods 0.000 description 9
- 230000003595 spectral effect Effects 0.000 description 9
- 238000012935 Averaging Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000001413 cellular effect Effects 0.000 description 7
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 230000002596 correlated effect Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 102100020865 EKC/KEOPS complex subunit LAGE3 Human genes 0.000 description 3
- 101001137983 Homo sapiens EKC/KEOPS complex subunit LAGE3 Proteins 0.000 description 3
- 101100122529 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GON7 gene Proteins 0.000 description 3
- 238000003491 array Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- MOJZMWJRUKIQGL-XILRTYJMSA-N procyanidin C1 Chemical compound C1([C@@H]2[C@H](O)[C@H](C3=C(O)C=C(O)C=C3O2)C2=C3O[C@@H]([C@H](O)[C@H](C3=C(O)C=C2O)C=2C(O)=CC(O)=C3C[C@H]([C@H](OC3=2)C=2C=C(O)C(O)=CC=2)O)C=2C=C(O)C(O)=CC=2)=CC=C(O)C(O)=C1 MOJZMWJRUKIQGL-XILRTYJMSA-N 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- 102220582676 Biotinidase_S20A_mutation Human genes 0.000 description 1
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
- H04B7/0669—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different channel coding between antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0652—Feedback error handling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
Abstract
Description
S 1 ′=k 11 R 1 +k 12 R 2 and S 2 ′=k 21 R 2 *+k 22 R 1*.
ā m(θ)=exp(−j×k×m×d× sin(θ)),
where k is 2π divided by the wavelength, m is an index from 0 to M (e.g., from 0 to 11 for a 12 element antenna) defining a number associated with the radiating element of the phased array antenna, d is the separation between radiating elements of the phased array antenna (preferably one-half of the wavelength) and θ is the bearing angle of the antenna beam formed.
P(θ)=ā(θ)H {circumflex over (x)}{circumflex over (x)} H ā(θ)
where ā(θ) is an array steering vector, {circumflex over (x)} is the received signal vector, {circumflex over (x)}{circumflex over (x)}H is the spatial covariance matrix of the received signal, and H denotes the complex conjugate transpose.
and the amplitude can be resolved to an accuracy of:
where Amax is the maximum amplitude.
T C=1/(2f D)=λ/(2v)=75 milliseconds.
TABLE 1 |
Format For Sending Channel State Information To The Base Station |
Slot | Feedback Bit | |
1 | |
2 | |
3 | |
4 | |
5 | Phase LSB |
6 | Phase LSB |
7 | |
8 | Amplitude MSB |
9 | |
10 | |
11 | |
12 | Amplitude LSB |
Claims (16)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/068,855 US7844010B2 (en) | 2000-06-02 | 2005-03-02 | Closed loop feedback system for improved down link performance |
US12/872,193 US8442144B2 (en) | 2000-06-02 | 2010-08-31 | Closed loop feedback system for improved down link performance |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/586,561 US7139324B1 (en) | 2000-06-02 | 2000-06-02 | Closed loop feedback system for improved down link performance |
US11/068,855 US7844010B2 (en) | 2000-06-02 | 2005-03-02 | Closed loop feedback system for improved down link performance |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/586,561 Division US7139324B1 (en) | 2000-06-02 | 2000-06-02 | Closed loop feedback system for improved down link performance |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/872,193 Continuation US8442144B2 (en) | 2000-06-02 | 2010-08-31 | Closed loop feedback system for improved down link performance |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050157683A1 US20050157683A1 (en) | 2005-07-21 |
US7844010B2 true US7844010B2 (en) | 2010-11-30 |
Family
ID=24346242
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/586,561 Expired - Lifetime US7139324B1 (en) | 2000-06-02 | 2000-06-02 | Closed loop feedback system for improved down link performance |
US11/068,856 Expired - Lifetime US7792206B2 (en) | 2000-06-02 | 2005-03-02 | Closed loop feedback system for improved down link performance |
US11/068,855 Expired - Lifetime US7844010B2 (en) | 2000-06-02 | 2005-03-02 | Closed loop feedback system for improved down link performance |
US12/872,193 Expired - Lifetime US8442144B2 (en) | 2000-06-02 | 2010-08-31 | Closed loop feedback system for improved down link performance |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/586,561 Expired - Lifetime US7139324B1 (en) | 2000-06-02 | 2000-06-02 | Closed loop feedback system for improved down link performance |
US11/068,856 Expired - Lifetime US7792206B2 (en) | 2000-06-02 | 2005-03-02 | Closed loop feedback system for improved down link performance |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/872,193 Expired - Lifetime US8442144B2 (en) | 2000-06-02 | 2010-08-31 | Closed loop feedback system for improved down link performance |
Country Status (11)
Country | Link |
---|---|
US (4) | US7139324B1 (en) |
EP (3) | EP1489756B1 (en) |
JP (1) | JP4868341B2 (en) |
KR (1) | KR20030034083A (en) |
CN (3) | CN100399722C (en) |
AT (2) | ATE329416T1 (en) |
AU (1) | AU6053301A (en) |
BR (2) | BR0111295A (en) |
CA (1) | CA2410982C (en) |
DE (3) | DE60120515T2 (en) |
WO (1) | WO2002001732A2 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100008281A1 (en) * | 2008-07-11 | 2010-01-14 | Krishna Balachandran | Broadcast and multicast in single frequency networks using othrogonal space-time codes |
US20100081427A1 (en) * | 2007-03-26 | 2010-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and a device for finding imperfections in an rf path |
US20120014525A1 (en) * | 2010-07-13 | 2012-01-19 | Samsung Electronics Co., Ltd. | Method and apparatus for simultaneously controlling near sound field and far sound field |
US20120275420A1 (en) * | 2010-01-15 | 2012-11-01 | Huawei Technologies Co., Ltd. | Method and User Equipment for Feeding Back Multi-Cell Channel State Information |
US20140003332A1 (en) * | 2011-11-30 | 2014-01-02 | Broadcom Corporation | Management of Backhaul Nodes in a Microwave Backhaul |
US20160131754A1 (en) * | 2013-07-19 | 2016-05-12 | Thales | Device for detecting electromagnetic signals |
US10014964B2 (en) | 2016-04-22 | 2018-07-03 | Blue Danube Systems, Inc. | Antenna element self-test and monitoring |
US20180351626A1 (en) * | 2017-05-30 | 2018-12-06 | Motorola Mobility Llc | Method and apparatus for transmitting an output stream of symbols over an antenna port |
US10170833B1 (en) * | 2014-12-19 | 2019-01-01 | L-3 Communications Corp. | Electronically controlled polarization and beam steering |
Families Citing this family (196)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7139324B1 (en) * | 2000-06-02 | 2006-11-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
US8339935B2 (en) * | 2000-09-01 | 2012-12-25 | Apple Inc. | Adaptive time diversity and spatial diversity for OFDM |
AU2001230641A1 (en) * | 2000-10-27 | 2002-05-06 | Nortel Networks Limited | Combination of space-time coding and spatial multiplexing, and the use of orthogonal transformation in space-time coding |
US20020110108A1 (en) * | 2000-12-07 | 2002-08-15 | Younglok Kim | Simple block space time transmit diversity using multiple spreading codes |
GB2399998B (en) | 2001-02-01 | 2005-04-13 | Fujitsu Ltd | Communications systems |
US6959047B1 (en) * | 2001-04-09 | 2005-10-25 | At&T Corp | Training-based channel estimation for multiple-antennas |
US7471734B2 (en) * | 2001-04-26 | 2008-12-30 | Motorola, Inc. | Space-time transmit diversity scheme for time-dispersive propagation media |
US20020198026A1 (en) * | 2001-06-20 | 2002-12-26 | Nokia Corporation | Method, communications system, and base station for transmitting signals with transmit diversity |
CN1161907C (en) * | 2001-07-20 | 2004-08-11 | 华为技术有限公司 | Downstream feedback multiple-antenna emitting method and device for radio communication system |
JP3540784B2 (en) * | 2001-08-24 | 2004-07-07 | 三洋電機株式会社 | Radio base station, transmission power control method, and transmission power control program |
JPWO2003049322A1 (en) * | 2001-11-30 | 2005-04-21 | 富士通株式会社 | Transmission diversity communication device |
US7046978B2 (en) | 2002-02-08 | 2006-05-16 | Qualcomm, Inc. | Method and apparatus for transmit pre-correction in wireless communications |
US6862271B2 (en) | 2002-02-26 | 2005-03-01 | Qualcomm Incorporated | Multiple-input, multiple-output (MIMO) systems with multiple transmission modes |
WO2003075485A1 (en) * | 2002-03-07 | 2003-09-12 | Nokia Corporation | Power control device and method for calibrating the power of a transmitter or receiver in a mobile communication network |
US7327800B2 (en) | 2002-05-24 | 2008-02-05 | Vecima Networks Inc. | System and method for data detection in wireless communication systems |
GB0212165D0 (en) | 2002-05-27 | 2002-07-03 | Nokia Corp | A wireless system |
EP1367760B1 (en) * | 2002-05-27 | 2009-11-18 | Nokia Corporation | Transmit/receive diversity wireless communication |
US7043274B2 (en) * | 2002-06-28 | 2006-05-09 | Interdigital Technology Corporation | System for efficiently providing coverage of a sectorized cell for common and dedicated channels utilizing beam forming and sweeping |
US6785559B1 (en) * | 2002-06-28 | 2004-08-31 | Interdigital Technology Corporation | System for efficiently covering a sectorized cell utilizing beam forming and sweeping |
EP1379020A1 (en) * | 2002-07-03 | 2004-01-07 | National University Of Singapore | A wireless communication apparatus and method |
US8194770B2 (en) | 2002-08-27 | 2012-06-05 | Qualcomm Incorporated | Coded MIMO systems with selective channel inversion applied per eigenmode |
KR100831987B1 (en) * | 2002-08-30 | 2008-05-23 | 삼성전자주식회사 | Transmitter and receiver using multiple antenna system for multiuser |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US7151809B2 (en) * | 2002-10-25 | 2006-12-19 | Qualcomm, Incorporated | Channel estimation and spatial processing for TDD MIMO systems |
US7324429B2 (en) | 2002-10-25 | 2008-01-29 | Qualcomm, Incorporated | Multi-mode terminal in a wireless MIMO system |
US8134976B2 (en) | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8218609B2 (en) | 2002-10-25 | 2012-07-10 | Qualcomm Incorporated | Closed-loop rate control for a multi-channel communication system |
US8570988B2 (en) | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8320301B2 (en) | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
US8170513B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Data detection and demodulation for wireless communication systems |
JP4163971B2 (en) * | 2003-02-06 | 2008-10-08 | 松下電器産業株式会社 | Transmitting apparatus and transmitting method |
US7184492B2 (en) | 2003-02-10 | 2007-02-27 | Ericsson Inc. | Using antenna arrays in multipath environment |
US7551699B2 (en) * | 2003-06-04 | 2009-06-23 | Ati Technologies, Inc. | Method and apparatus for controlling a smart antenna using metrics derived from a single carrier digital signal |
FR2859333A1 (en) * | 2003-09-01 | 2005-03-04 | France Telecom | Signal decoding method for use in e.g. third generation radio communication field, involves diversity pre-decoding signal, estimating symbols and applying diversity pre-coding to estimated symbols, for two iterations |
US7383063B2 (en) * | 2003-09-18 | 2008-06-03 | Kyocera Wireless Corp. | Communication device with diversity antenna |
US7385914B2 (en) * | 2003-10-08 | 2008-06-10 | Atheros Communications, Inc. | Apparatus and method of multiple antenna transmitter beamforming of high data rate wideband packetized wireless communication signals |
US8462817B2 (en) | 2003-10-15 | 2013-06-11 | Qualcomm Incorporated | Method, apparatus, and system for multiplexing protocol data units |
US8483105B2 (en) | 2003-10-15 | 2013-07-09 | Qualcomm Incorporated | High speed media access control |
US9226308B2 (en) | 2003-10-15 | 2015-12-29 | Qualcomm Incorporated | Method, apparatus, and system for medium access control |
US8472473B2 (en) | 2003-10-15 | 2013-06-25 | Qualcomm Incorporated | Wireless LAN protocol stack |
US8233462B2 (en) | 2003-10-15 | 2012-07-31 | Qualcomm Incorporated | High speed media access control and direct link protocol |
US7432857B2 (en) * | 2003-11-07 | 2008-10-07 | Matsushita Electric Industrial Co., Ltd. | Adaptive antenna apparatus provided with a plurality of pairs of bidirectional antennas |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
JP2007515888A (en) * | 2003-12-22 | 2007-06-14 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Universal derotator for UMTS mode |
US8903440B2 (en) | 2004-01-29 | 2014-12-02 | Qualcomm Incorporated | Distributed hierarchical scheduling in an ad hoc network |
JP4482523B2 (en) * | 2004-02-13 | 2010-06-16 | パナソニック株式会社 | Transmitting apparatus, receiving apparatus, and wireless communication method |
US9819403B2 (en) | 2004-04-02 | 2017-11-14 | Rearden, Llc | System and method for managing handoff of a client between different distributed-input-distributed-output (DIDO) networks based on detected velocity of the client |
US11309943B2 (en) | 2004-04-02 | 2022-04-19 | Rearden, Llc | System and methods for planned evolution and obsolescence of multiuser spectrum |
US8542763B2 (en) | 2004-04-02 | 2013-09-24 | Rearden, Llc | Systems and methods to coordinate transmissions in distributed wireless systems via user clustering |
US7885354B2 (en) * | 2004-04-02 | 2011-02-08 | Rearden, Llc | System and method for enhancing near vertical incidence skywave (“NVIS”) communication using space-time coding |
US10200094B2 (en) | 2004-04-02 | 2019-02-05 | Rearden, Llc | Interference management, handoff, power control and link adaptation in distributed-input distributed-output (DIDO) communication systems |
US11394436B2 (en) | 2004-04-02 | 2022-07-19 | Rearden, Llc | System and method for distributed antenna wireless communications |
US10985811B2 (en) | 2004-04-02 | 2021-04-20 | Rearden, Llc | System and method for distributed antenna wireless communications |
US8654815B1 (en) | 2004-04-02 | 2014-02-18 | Rearden, Llc | System and method for distributed antenna wireless communications |
US10749582B2 (en) | 2004-04-02 | 2020-08-18 | Rearden, Llc | Systems and methods to coordinate transmissions in distributed wireless systems via user clustering |
US10187133B2 (en) | 2004-04-02 | 2019-01-22 | Rearden, Llc | System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network |
US11451275B2 (en) | 2004-04-02 | 2022-09-20 | Rearden, Llc | System and method for distributed antenna wireless communications |
US10277290B2 (en) | 2004-04-02 | 2019-04-30 | Rearden, Llc | Systems and methods to exploit areas of coherence in wireless systems |
US9826537B2 (en) | 2004-04-02 | 2017-11-21 | Rearden, Llc | System and method for managing inter-cluster handoff of clients which traverse multiple DIDO clusters |
US10425134B2 (en) | 2004-04-02 | 2019-09-24 | Rearden, Llc | System and methods for planned evolution and obsolescence of multiuser spectrum |
US9312929B2 (en) | 2004-04-02 | 2016-04-12 | Rearden, Llc | System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS) |
US10886979B2 (en) | 2004-04-02 | 2021-01-05 | Rearden, Llc | System and method for link adaptation in DIDO multicarrier systems |
US8233555B2 (en) * | 2004-05-17 | 2012-07-31 | Qualcomm Incorporated | Time varying delay diversity of OFDM |
CN1989722B (en) * | 2004-05-17 | 2011-05-18 | 高通股份有限公司 | Time varying cyclic delay diversity of OFDM |
US20050265280A1 (en) * | 2004-05-25 | 2005-12-01 | Samsung Electronics Co., Ltd. | OFDM symbol transmission method and apparatus for providing sector diversity in a mobile communication system, and a system using the same |
US20050272472A1 (en) * | 2004-05-27 | 2005-12-08 | Interdigital Technology Corporation | Wireless communication method and system for forming three-dimensional control channel beams and managing high volume user coverage areas |
KR20050120441A (en) * | 2004-06-18 | 2005-12-22 | 삼성전자주식회사 | Transmission diversity apparatus and method using multiple antenna in a mobile communication system |
US9685997B2 (en) | 2007-08-20 | 2017-06-20 | Rearden, Llc | Systems and methods to enhance spatial diversity in distributed-input distributed-output wireless systems |
CA2771267C (en) | 2004-08-12 | 2016-03-15 | Interdigital Technology Corporation | Method and apparatus for implementing space frequency block coding |
US8503328B2 (en) * | 2004-09-01 | 2013-08-06 | Qualcomm Incorporated | Methods and apparatus for transmission of configuration information in a wireless communication network |
US7577209B2 (en) | 2004-09-30 | 2009-08-18 | Intel Corporation | Deterministic spatial power allocation and bit loading for closed loop MIMO |
ATE536667T1 (en) | 2004-10-07 | 2011-12-15 | Telecom Italia Spa | TRANSMIT DIVERSITY WITH VARIABLE DELAY |
KR100657827B1 (en) * | 2004-10-22 | 2006-12-14 | 삼성전자주식회사 | Signal to interference ratio measurement method using pilot channel power degradation ratio, and signal to interference ratio measurement apparatus using the same |
KR101023366B1 (en) * | 2004-10-27 | 2011-03-18 | 삼성전자주식회사 | Method and apparatus for transmitting/receiving a signal in a multiple input multiple output wireless communication system using beam forming scheme |
EP1659813B1 (en) * | 2004-11-19 | 2009-04-29 | Sony Deutschland GmbH | Communication system and method |
US20060268623A1 (en) * | 2005-03-09 | 2006-11-30 | Samsung Electronics Co., Ltd. | Transmitting/receiving apparatus and method in a closed-loop MIMO system |
WO2006098011A1 (en) * | 2005-03-16 | 2006-09-21 | Fujitsu Limited | Radio communication device in multi-input system and channel estimation and separation method |
US7610025B2 (en) * | 2005-03-29 | 2009-10-27 | Qualcomm Incorporated | Antenna array pattern distortion mitigation |
US7787552B2 (en) | 2005-04-14 | 2010-08-31 | Telefonaktiebolaget Lm Ericsson (Publ) | Distributed transmit diversity in a wireless communication network |
CA2604227C (en) * | 2005-04-14 | 2015-01-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Distributed transmit diversity in a wireless communication network |
US20060252461A1 (en) * | 2005-05-06 | 2006-11-09 | Grant Neil G | Controlling wireless communications from a multi-sector antenna of a base station |
US7466749B2 (en) | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
EP1879317A1 (en) * | 2005-05-25 | 2008-01-16 | Matsushita Electric Industrial Co., Ltd. | Radio transmitting apparatus, radio receiving apparatus and radio transmitting method |
DE602005027822D1 (en) * | 2005-05-25 | 2011-06-16 | Mitsubishi Electric Corp | Encoding matrix in a MIMO system |
US7603141B2 (en) * | 2005-06-02 | 2009-10-13 | Qualcomm, Inc. | Multi-antenna station with distributed antennas |
US8358714B2 (en) | 2005-06-16 | 2013-01-22 | Qualcomm Incorporated | Coding and modulation for multiple data streams in a communication system |
US7693037B2 (en) * | 2005-06-21 | 2010-04-06 | Qualcomm Incorporated | Method and system for adapting an effective spreading sequence in a communication system using direct sequence spreading |
US20070010207A1 (en) * | 2005-07-05 | 2007-01-11 | Dooley John A | System and method for the ultra-precise analysis and characterization of RF propagation dynamics in wireless communication networks |
WO2007020563A1 (en) * | 2005-08-19 | 2007-02-22 | Koninklijke Philips Electronics N.V. | Method and apparatus of multiple antennas transmission |
CN101729118B (en) | 2005-09-01 | 2016-03-23 | 施耐普特拉克股份有限公司 | Sending control method |
US8600336B2 (en) | 2005-09-12 | 2013-12-03 | Qualcomm Incorporated | Scheduling with reverse direction grant in wireless communication systems |
US7826416B2 (en) * | 2005-09-21 | 2010-11-02 | Broadcom Corporation | Method and system for a simplified user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmission |
US8675760B2 (en) * | 2005-09-21 | 2014-03-18 | Broadcom Corporation | Method and system for selecting a user group using hybrid-quantized channel direction information feedbacks from MIMO capable mobile devices |
WO2007038969A1 (en) * | 2005-10-05 | 2007-04-12 | Telecom Italia S.P.A | Method and system for multiple antenna communications, related apparatus and corresponding computer program product |
WO2007048427A1 (en) * | 2005-10-27 | 2007-05-03 | Telecom Italia S.P.A. | Method and system for multiple antenna communications using multiple transmission modes, related apparatus and computer program product |
DE602006020477D1 (en) * | 2005-10-31 | 2011-04-14 | Sharp Kk | DEVICE DEVICE, BASIC STATION AND COMMUNICATION SYSTEM |
JP4920595B2 (en) | 2005-10-31 | 2012-04-18 | シャープ株式会社 | Transmission control method, communication terminal, and communication system |
KR100684032B1 (en) * | 2005-11-29 | 2007-02-28 | 한국과학기술원 | A truncated adaptive transmission method for a cdma/fdm system in forward link |
US8972359B2 (en) * | 2005-12-19 | 2015-03-03 | Rockstar Consortium Us Lp | Compact floating point delta encoding for complex data |
EP1843485B1 (en) * | 2006-03-30 | 2016-06-08 | Sony Deutschland Gmbh | Multiple-input multiple-output (MIMO) spatial multiplexing system with dynamic antenna beam combination selection capability |
CA2547647A1 (en) * | 2006-04-04 | 2007-10-04 | Tenxc Wireless Inc. | Delay based sector beam synthesis in a multi-beam antenna system |
US8412125B2 (en) * | 2006-10-13 | 2013-04-02 | Cisco Technology, Inc. | Wireless communication system with transmit diversity designs |
DE602006019786D1 (en) | 2006-11-29 | 2011-03-03 | Pirelli & C Spa | SWITCHING LUMINAIRE SYSTEM AND METHOD WITH DIGITALLY CONTROLLED WEIGHTED HIGH FREQUENCY COMBINATION |
US7928781B2 (en) | 2006-12-04 | 2011-04-19 | Micron Technology, Inc. | Fast measurement initialization for memory |
US8670504B2 (en) * | 2006-12-19 | 2014-03-11 | Qualcomm Incorporated | Beamspace-time coding based on channel quality feedback |
US9106296B2 (en) * | 2006-12-19 | 2015-08-11 | Qualcomm Incorporated | Beam space time coding and transmit diversity |
US8165543B2 (en) | 2007-04-25 | 2012-04-24 | Marvell World Trade Ltd. | Power amplifier adjustment for transmit beamforming in multi-antenna wireless systems |
CN101296461B (en) * | 2007-04-27 | 2012-01-04 | 华为技术有限公司 | Physical resource block descending channel quality reporting method, updating method and device thereof |
US7834807B2 (en) * | 2007-05-21 | 2010-11-16 | Spatial Digital Systems, Inc. | Retro-directive ground-terminal antenna for communication with geostationary satellites in slightly inclined orbits |
US8989155B2 (en) * | 2007-08-20 | 2015-03-24 | Rearden, Llc | Systems and methods for wireless backhaul in distributed-input distributed-output wireless systems |
ITMI20071713A1 (en) * | 2007-08-31 | 2009-03-01 | Baccio Baccetti | POINT-POINT RADIO SYSTEM AND METHOD FOR THE FUNCTIONING OF THIS SYSTEM. |
WO2009058473A1 (en) * | 2007-10-30 | 2009-05-07 | Rambus Inc. | Technique for determining an angle of arrival in a communication system |
CN101919117B (en) | 2007-12-19 | 2014-03-19 | 意大利电信股份公司 | Method and system for switched beam antenna communications |
US8213533B2 (en) * | 2008-02-11 | 2012-07-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Distributed antenna diversity transmission method |
US8934855B2 (en) * | 2008-11-12 | 2015-01-13 | Apple Inc. | Antenna auto-configuration |
US8588805B2 (en) * | 2008-12-13 | 2013-11-19 | Broadcom Corporation | Receiver utilizing multiple radiation patterns to determine angular position |
JP5278035B2 (en) * | 2009-02-25 | 2013-09-04 | ソニー株式会社 | COMMUNICATION DEVICE AND COMMUNICATION METHOD, COMPUTER PROGRAM, AND COMMUNICATION SYSTEM |
JP2012521139A (en) * | 2009-03-16 | 2012-09-10 | パンテック カンパニー リミテッド | Apparatus for transmission via multiple antennas |
US8380133B2 (en) * | 2009-05-11 | 2013-02-19 | Nec Laboratories America, Inc. | Beamforming methods and systems employing measured power at a receiver to perform channel estimation |
KR101647377B1 (en) * | 2009-05-22 | 2016-08-10 | 엘지전자 주식회사 | A method for adaptive multi-antenna transmission based on antenna transmission power in wireless communication system and apparatus thereof |
KR101617232B1 (en) | 2009-12-01 | 2016-05-02 | 아주대학교산학협력단 | Antenna control method and apparatus in a wireless communication system |
KR101581811B1 (en) * | 2010-01-29 | 2016-01-04 | 삼성전자주식회사 | Method and apparatus for transmitting and receiving training sequence code in communication system |
JP5623248B2 (en) | 2010-09-10 | 2014-11-12 | パナソニックインテレクチュアル プロパティ コーポレーション オブアメリカPanasonic Intellectual Property Corporation of America | Transmission method, transmission device, reception method, and reception device |
US10090982B2 (en) | 2010-09-29 | 2018-10-02 | Qualcomm Incorporated | Systems and methods for communication of channel state information |
US9831983B2 (en) | 2010-09-29 | 2017-11-28 | Qualcomm Incorporated | Systems, methods and apparatus for determining control field and modulation coding scheme information |
US9882624B2 (en) | 2010-09-29 | 2018-01-30 | Qualcomm, Incorporated | Systems and methods for communication of channel state information |
US9077498B2 (en) | 2010-09-29 | 2015-07-07 | Qualcomm Incorporated | Systems and methods for communication of channel state information |
US9602298B2 (en) | 2010-09-29 | 2017-03-21 | Qualcomm Incorporated | Methods and apparatuses for determining a type of control field |
US9813135B2 (en) | 2010-09-29 | 2017-11-07 | Qualcomm, Incorporated | Systems and methods for communication of channel state information |
US9374193B2 (en) | 2010-09-29 | 2016-06-21 | Qualcomm Incorporated | Systems and methods for communication of channel state information |
US9806848B2 (en) | 2010-09-29 | 2017-10-31 | Qualcomm Incorporated | Systems, methods and apparatus for determining control field and modulation coding scheme information |
JP5578617B2 (en) | 2010-10-18 | 2014-08-27 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Transmission method, transmission device, reception method, and reception device |
US9398539B2 (en) * | 2010-10-21 | 2016-07-19 | Lg Electronics Inc. | Method for transmitting signal in multiple node system |
CN107104716B (en) | 2011-04-19 | 2020-10-02 | 太阳专利托管公司 | Signal generation method and device, and signal processing method and device |
CN102215055B (en) * | 2011-06-08 | 2018-02-09 | 中兴通讯股份有限公司 | Data transmission method for uplink and device |
JP6238305B2 (en) * | 2011-09-16 | 2017-11-29 | サムスン エレクトロニクス カンパニー リミテッド | Beam allocation apparatus and method in wireless communication system |
TW201316709A (en) * | 2011-10-12 | 2013-04-16 | Transystem Inc | Wireless multiple input and multiple output communication system with an extended module |
KR101930355B1 (en) * | 2011-12-23 | 2018-12-20 | 한국전자통신연구원 | Communication system for determining data transmitting scheme according to channel state |
KR101921669B1 (en) * | 2011-12-27 | 2018-11-27 | 삼성전자주식회사 | Method and appratus for limited feedback of channel state information in massive mimo system based frequency division duplexing wireless communication |
TWI439066B (en) * | 2012-02-15 | 2014-05-21 | Transystem Inc | Expansion assembly for multiple input multiple output wireless communication system |
KR102140298B1 (en) * | 2012-03-27 | 2020-07-31 | 삼성전자주식회사 | Method and apparatus for transmitting beam information in wireless communication system |
US9078144B2 (en) * | 2012-05-02 | 2015-07-07 | Nokia Solutions And Networks Oy | Signature enabler for multi-vendor SON coordination |
US8982980B2 (en) | 2012-05-15 | 2015-03-17 | Marvell World Trade Ltd. | Full and partial compressed feedback formats for WLAN |
US11189917B2 (en) | 2014-04-16 | 2021-11-30 | Rearden, Llc | Systems and methods for distributing radioheads |
US11190947B2 (en) | 2014-04-16 | 2021-11-30 | Rearden, Llc | Systems and methods for concurrent spectrum usage within actively used spectrum |
US10194346B2 (en) | 2012-11-26 | 2019-01-29 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
US11050468B2 (en) | 2014-04-16 | 2021-06-29 | Rearden, Llc | Systems and methods for mitigating interference within actively used spectrum |
US9391367B2 (en) | 2012-12-05 | 2016-07-12 | Intel Corporation | Apparatus, system and method of steering an antenna array |
US9917616B2 (en) * | 2013-01-17 | 2018-03-13 | Telefonaktiebolaget L M Ericsson (Publ) | Synchronization signal design for wireless devices in a long range extension mode |
FI125462B (en) * | 2013-01-29 | 2015-10-15 | Inverpolis Oy | Procedures and systems for using a phased antenna array |
US9026119B2 (en) * | 2013-02-28 | 2015-05-05 | Alvarion Ltd. | Coordinating distributed radio via remote units |
US9973246B2 (en) | 2013-03-12 | 2018-05-15 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
US9923657B2 (en) | 2013-03-12 | 2018-03-20 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
US10488535B2 (en) | 2013-03-12 | 2019-11-26 | Rearden, Llc | Apparatus and method for capturing still images and video using diffraction coded imaging techniques |
US10164698B2 (en) | 2013-03-12 | 2018-12-25 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
US10547358B2 (en) | 2013-03-15 | 2020-01-28 | Rearden, Llc | Systems and methods for radio frequency calibration exploiting channel reciprocity in distributed input distributed output wireless communications |
US9768924B2 (en) * | 2013-08-14 | 2017-09-19 | Hewlett Packard Enterprise Development Lp | Transmit antenna selection |
US9178588B2 (en) * | 2013-09-10 | 2015-11-03 | Intel IP Corporation | Method for determining a transmission direction for a communication, a method for determining a precoding matrix for a communication, and a device configured to do the same |
US11290162B2 (en) | 2014-04-16 | 2022-03-29 | Rearden, Llc | Systems and methods for mitigating interference within actively used spectrum |
EP3001739B1 (en) | 2014-09-25 | 2019-04-10 | Motorola Solutions, Inc. | Method and apparatus for adaptation of the base station transmit power in order to reduce power consumption |
US9369881B1 (en) * | 2014-11-14 | 2016-06-14 | Sprint Communications Company L.P. | Modification of antenna dipole element orientation for enhanced radio transmission |
KR20160075995A (en) * | 2014-12-19 | 2016-06-30 | 한국전자통신연구원 | Method and apparatus for transmitting physical channel |
US9763120B2 (en) * | 2014-12-24 | 2017-09-12 | EVA Automation, Inc. | Redundant links for reliable communication |
WO2016153265A1 (en) * | 2015-03-26 | 2016-09-29 | 엘지전자 주식회사 | Method and device for estimating doppler frequency by using beam scanning process in wireless communication system |
GB2539727B (en) | 2015-06-25 | 2021-05-12 | Airspan Ip Holdco Llc | A configurable antenna and method of operating such a configurable antenna |
GB2539733A (en) | 2015-06-25 | 2016-12-28 | Airspan Networks Inc | An antenna apparatus and method of configuring a transmission beam for the antenna apparatus |
GB2539722B (en) | 2015-06-25 | 2021-10-13 | Airspan Ip Holdco Llc | Bearing calculation |
GB2539734A (en) | 2015-06-25 | 2016-12-28 | Airspan Networks Inc | An antenna apparatus and method of performing spatial nulling within the antenna apparatus |
GB2539731B (en) | 2015-06-25 | 2021-08-04 | Airspan Ip Holdco Llc | Quality of service in wireless backhauls |
GB2539736A (en) | 2015-06-25 | 2016-12-28 | Airspan Networks Inc | Wireless network configuration using path loss determination between nodes |
WO2016207603A1 (en) | 2015-06-25 | 2016-12-29 | Airspan Networks Inc. | Managing external interference in a wireless network |
GB2539730B (en) | 2015-06-25 | 2021-04-07 | Airspan Ip Holdco Llc | Node role assignment in networks |
GB2539732A (en) * | 2015-06-25 | 2016-12-28 | Airspan Networks Inc | A configurable antenna and method of operating such a configurable antenna |
GB2539735A (en) | 2015-06-25 | 2016-12-28 | Airspan Networks Inc | Sub-sampling antenna elements |
US10205491B2 (en) * | 2015-09-28 | 2019-02-12 | Futurewei Technologies, Inc. | System and method for large scale multiple input multiple output communications |
EP3179260B1 (en) * | 2015-12-10 | 2018-09-26 | Stichting IMEC Nederland | Apparatus and method for monitoring performance of integrated circuit |
US10455601B2 (en) * | 2016-11-17 | 2019-10-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Co-scheduling of wireless devices |
WO2018143995A1 (en) * | 2017-02-02 | 2018-08-09 | Nokia Technologies Oy | Codebook selection among codebooks with different spatial granularity for wireless networks |
EP3586470A4 (en) * | 2017-02-24 | 2021-03-10 | AMI Research & Development, LLC | Directional mimo antenna |
US20180254825A1 (en) * | 2017-03-02 | 2018-09-06 | UbiquitiLink, Inc. | Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications |
US10742311B2 (en) | 2017-03-02 | 2020-08-11 | Lynk Global, Inc. | Simplified inter-satellite link communications using orbital plane crossing to optimize inter-satellite data transfers |
US10084535B1 (en) | 2017-04-26 | 2018-09-25 | UbiquitiLink, Inc. | Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications |
US10148513B1 (en) * | 2017-05-10 | 2018-12-04 | International Business Machines Corporation | Mobile device bandwidth consumption |
WO2019069296A1 (en) * | 2017-10-02 | 2019-04-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Ordering of csi in uci |
US10951305B2 (en) | 2018-04-26 | 2021-03-16 | Lynk Global, Inc. | Orbital base station filtering of interference from terrestrial-terrestrial communications of devices that use protocols in common with orbital-terrestrial communications |
WO2020073148A1 (en) * | 2018-10-08 | 2020-04-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmission power determination for an antenna array |
CN112020077B (en) * | 2019-05-30 | 2022-06-10 | 华为技术有限公司 | Communication method and device |
US10841024B1 (en) | 2019-09-11 | 2020-11-17 | Telefonaktiebolaget Lm Ericsson (Publ) | Beam selection for high frequency wireless communication network |
US11038573B1 (en) | 2020-02-19 | 2021-06-15 | The Boeing Company | Distributed beamforming system with user side beamforming processing |
US10979118B1 (en) * | 2020-02-19 | 2021-04-13 | The Boeing Company | Distributed beamforming system with user side beamforming processing |
WO2021226928A1 (en) * | 2020-05-14 | 2021-11-18 | Nokia Shanghai Bell Co., Ltd. | Enhanced csi feedback in ntn with long propagation delay |
US11863250B2 (en) | 2021-01-06 | 2024-01-02 | Lynk Global, Inc. | Satellite communication system transmitting navigation signals using a wide beam and data signals using a directive beam |
Citations (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5274844A (en) * | 1992-05-11 | 1993-12-28 | Motorola, Inc. | Beam pattern equalization method for an adaptive array |
US5613219A (en) | 1993-02-05 | 1997-03-18 | U.S. Philips Corporation | Transceiver having plural antennas and adjusting the time delay of transmitted signals to match the time delay of received signals |
EP0795970A2 (en) | 1996-03-14 | 1997-09-17 | Nec Corporation | Cellular radio system with simulcast transmission of delay-adjusted downlink signals to mobiles via adjacent base stations |
US5825807A (en) | 1995-11-06 | 1998-10-20 | Kumar; Derek D. | System and method for multiplexing a spread spectrum communication system |
US5848103A (en) | 1995-10-04 | 1998-12-08 | Lucent Technologies Inc. | Method and apparatus for providing time diversity |
US5856804A (en) * | 1996-10-30 | 1999-01-05 | Motorola, Inc. | Method and intelligent digital beam forming system with improved signal quality communications |
US5936569A (en) * | 1997-12-02 | 1999-08-10 | Nokia Telecommunications Oy | Method and arrangement for adjusting antenna pattern |
US5999826A (en) | 1996-05-17 | 1999-12-07 | Motorola, Inc. | Devices for transmitter path weights and methods therefor |
EP0969610A2 (en) | 1998-07-02 | 2000-01-05 | Lucent Technologies Inc. | Code division multiple access communication with enhanced multipath diversity |
US6067290A (en) | 1999-07-30 | 2000-05-23 | Gigabit Wireless, Inc. | Spatial multiplexing in a cellular network |
EP1003297A2 (en) | 1998-11-10 | 2000-05-24 | Lucent Technologies Inc. | Transmit diversity and reception equalization for radio links |
US6128330A (en) | 1998-11-24 | 2000-10-03 | Linex Technology, Inc. | Efficient shadow reduction antenna system for spread spectrum |
US6131016A (en) | 1997-08-27 | 2000-10-10 | At&T Corp | Method and apparatus for enhancing communication reception at a wireless communication terminal |
US6185440B1 (en) | 1997-12-10 | 2001-02-06 | Arraycomm, Inc. | Method for sequentially transmitting a downlink signal from a communication station that has an antenna array to achieve an omnidirectional radiation |
US6198775B1 (en) | 1998-04-28 | 2001-03-06 | Ericsson Inc. | Transmit diversity method, systems, and terminals using scramble coding |
US6232921B1 (en) | 2000-01-11 | 2001-05-15 | Lucent Technologies Inc. | Method and system for adaptive signal processing for an antenna array |
US6298035B1 (en) | 1999-12-21 | 2001-10-02 | Nokia Networks Oy | Estimation of two propagation channels in OFDM |
US6307882B1 (en) | 1998-07-10 | 2001-10-23 | Lucent Technologies Inc. | Determining channel characteristics in a space-time architecture wireless communication system having multi-element antennas |
US6314305B1 (en) * | 1998-12-10 | 2001-11-06 | Lucent Technologies Inc. | Transmitter/receiver for combined adaptive array processing and fixed beam switching |
US6317411B1 (en) | 1999-02-22 | 2001-11-13 | Motorola, Inc. | Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques |
US6348389B1 (en) * | 1999-03-11 | 2002-02-19 | Taiwan Semiconductor Manufacturing Company | Method of forming and etching a resist protect oxide layer including end-point etch |
US6351499B1 (en) | 1999-12-15 | 2002-02-26 | Iospan Wireless, Inc. | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter |
US6377632B1 (en) | 2000-01-24 | 2002-04-23 | Iospan Wireless, Inc. | Wireless communication system and method using stochastic space-time/frequency division multiplexing |
US6377819B1 (en) | 2000-04-06 | 2002-04-23 | Iospan Wireless, Inc. | Wireless communication system using joined transmit and receive processing |
US6385181B1 (en) | 1998-03-18 | 2002-05-07 | Fujitsu Limited | Array antenna system of wireless base station |
US6400780B1 (en) | 1998-11-06 | 2002-06-04 | Lucent Technologies Inc. | Space-time diversity for wireless systems |
US6438389B1 (en) * | 1998-07-24 | 2002-08-20 | The Board Of Trustees Of The Leland Stanford Junior University | Wireless communication system with adaptive beam selection |
US6473393B1 (en) | 1998-12-18 | 2002-10-29 | At&T Corp. | Channel estimation for OFDM systems with transmitter diversity |
US6501803B1 (en) | 1998-10-05 | 2002-12-31 | At&T Wireless Services, Inc. | Low complexity maximum likelihood detecting of concatenated space codes for wireless applications |
US6515978B1 (en) | 1999-04-19 | 2003-02-04 | Lucent Technologies Inc. | Methods and apparatus for downlink diversity in CDMA using Walsh codes |
US6542736B1 (en) | 2000-04-04 | 2003-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Efficient radio link adaptation and base station sector selection in a radio communication system |
US6542556B1 (en) | 2000-03-31 | 2003-04-01 | Nokia Mobile Phones Ltd. | Space-time code for multiple antenna transmission |
US6546236B1 (en) | 1997-08-11 | 2003-04-08 | Ericsson Inc. | Phase-compensating polarization diversity receiver |
US6549544B1 (en) | 1999-11-10 | 2003-04-15 | Ibiquity Digital Corporation | Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting |
US6584593B1 (en) | 1998-10-02 | 2003-06-24 | At&T Corp. | Concatenation of turbo-TCM with space-block coding |
US6584302B1 (en) * | 1999-10-19 | 2003-06-24 | Nokia Corporation | Method and arrangement for forming a beam |
US6594473B1 (en) | 1999-05-28 | 2003-07-15 | Texas Instruments Incorporated | Wireless system with transmitter having multiple transmit antennas and combining open loop and closed loop transmit diversities |
US6615024B1 (en) * | 1998-05-01 | 2003-09-02 | Arraycomm, Inc. | Method and apparatus for determining signatures for calibrating a communication station having an antenna array |
US6621877B1 (en) | 1997-01-30 | 2003-09-16 | Motorola, Inc. | Method to train a radio receiver |
US20030228850A1 (en) | 2002-06-07 | 2003-12-11 | Lg Electronics Inc. | Transmit diversity apparatus for mobile communication system and method thereof |
US6724828B1 (en) | 1999-01-19 | 2004-04-20 | Texas Instruments Incorporated | Mobile switching between STTD and non-diversity mode |
US20040116077A1 (en) | 2002-08-08 | 2004-06-17 | Kddi Corporation | Transmitter device and receiver device adopting space time transmit diversity multicarrier CDMA, and wireless communication system with the transmitter device and the receiver device |
US6778507B1 (en) * | 1999-09-01 | 2004-08-17 | Qualcomm Incorporated | Method and apparatus for beamforming in a wireless communication system |
US6788661B1 (en) * | 1999-11-12 | 2004-09-07 | Nikia Networks Oy | Adaptive beam-time coding method and apparatus |
US20050037718A1 (en) | 2003-05-15 | 2005-02-17 | Kim Sung-Jin | Device and method for transmitting and receiving data by a transmit diversity scheme using multiple antennas in a mobile communication system |
US20050157683A1 (en) | 2000-06-02 | 2005-07-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
US6977910B1 (en) * | 1998-12-31 | 2005-12-20 | Texas Instruments Incorporated | Power control with space time transmit diversity |
US20060234789A1 (en) | 2002-11-04 | 2006-10-19 | Vivato, Inc. | Complementary Beamforming Methods and Apparatuses |
US7200368B1 (en) * | 2000-03-15 | 2007-04-03 | Nokia Corporation | Transmit diversity method and system |
US7403748B1 (en) * | 2000-04-07 | 2008-07-22 | Nokia Coporation | Multi-antenna transmission method and system |
US8351499B2 (en) | 2008-04-11 | 2013-01-08 | Tektronix, Inc. | Method of identifying inconsistent field dominance metadata in a sequence of video frames |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5216692A (en) * | 1992-03-31 | 1993-06-01 | Motorola, Inc. | Method and apparatus for adjusting a power control threshold in a communication system |
EP0931388B1 (en) | 1996-08-29 | 2003-11-05 | Cisco Technology, Inc. | Spatio-temporal processing for communication |
JPH10163937A (en) * | 1996-12-04 | 1998-06-19 | Y R P Ido Tsushin Kiban Gijutsu Kenkyusho:Kk | Antenna changeover control system |
JP3108643B2 (en) * | 1996-12-04 | 2000-11-13 | 株式会社ワイ・アール・ピー移動通信基盤技術研究所 | Antenna switching control method |
US5991284A (en) * | 1997-02-13 | 1999-11-23 | Qualcomm Inc. | Subchannel control loop |
US6173162B1 (en) * | 1997-06-16 | 2001-01-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple code channel power control in a radio communication system |
CN1099774C (en) * | 1997-09-19 | 2003-01-22 | 松下电器产业株式会社 | Mobile communication equipment |
JP3355295B2 (en) * | 1997-11-13 | 2002-12-09 | 松下電器産業株式会社 | Transmission power control method and transmission / reception device |
US6249683B1 (en) * | 1999-04-08 | 2001-06-19 | Qualcomm Incorporated | Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel |
US6690944B1 (en) * | 1999-04-12 | 2004-02-10 | Nortel Networks Limited | Power control of a multi-subchannel mobile station in a mobile communication system |
US6285886B1 (en) * | 1999-07-08 | 2001-09-04 | Lucent Technologies Inc. | Method for controlling power for a communications system having multiple traffic channels per subscriber |
US6782277B1 (en) * | 1999-09-30 | 2004-08-24 | Qualcomm Incorporated | Wireless communication system with base station beam sweeping |
US6792030B2 (en) * | 1999-10-05 | 2004-09-14 | Nortel Networks Limited | Method and apparatus for delivering non-obtrusive data services by spread spectrum modulation |
US6658262B1 (en) * | 1999-12-27 | 2003-12-02 | Telefonaktiebolget Lm Ericsson (Publ) | Method and system for power control order message management |
US6788507B2 (en) * | 2002-03-17 | 2004-09-07 | United Microelectronics Corp. | Electrostatic discharge protection circuit |
US6742828B2 (en) * | 2002-09-24 | 2004-06-01 | John Donovan Enterprises, Inc. | Container covering apparatus |
KR100842619B1 (en) * | 2006-11-22 | 2008-06-30 | 삼성전자주식회사 | Symbol error rate based power allocation scheme for combined orthogonal space time block codes and beam forming in distributed wireless communication system |
-
2000
- 2000-06-02 US US09/586,561 patent/US7139324B1/en not_active Expired - Lifetime
-
2001
- 2001-06-01 DE DE60120515T patent/DE60120515T2/en not_active Expired - Lifetime
- 2001-06-01 JP JP2002505768A patent/JP4868341B2/en not_active Expired - Lifetime
- 2001-06-01 EP EP04020208A patent/EP1489756B1/en not_active Expired - Lifetime
- 2001-06-01 DE DE60131533T patent/DE60131533T2/en not_active Expired - Lifetime
- 2001-06-01 AT AT04020209T patent/ATE329416T1/en not_active IP Right Cessation
- 2001-06-01 DE DE60120516T patent/DE60120516T2/en not_active Expired - Lifetime
- 2001-06-01 AT AT04020208T patent/ATE329417T1/en not_active IP Right Cessation
- 2001-06-01 CN CNB2005100519122A patent/CN100399722C/en not_active Expired - Lifetime
- 2001-06-01 EP EP01934236A patent/EP1287627B1/en not_active Expired - Lifetime
- 2001-06-01 KR KR1020027016423A patent/KR20030034083A/en not_active Application Discontinuation
- 2001-06-01 BR BR0111295-3A patent/BR0111295A/en active IP Right Grant
- 2001-06-01 CN CNB2005100519118A patent/CN100421363C/en not_active Expired - Lifetime
- 2001-06-01 AU AU60533/01A patent/AU6053301A/en not_active Abandoned
- 2001-06-01 CN CNB018116736A patent/CN100392996C/en not_active Expired - Lifetime
- 2001-06-01 CA CA002410982A patent/CA2410982C/en not_active Expired - Fee Related
- 2001-06-01 EP EP04020209A patent/EP1487134B1/en not_active Expired - Lifetime
- 2001-06-01 WO PCT/IB2001/000967 patent/WO2002001732A2/en active IP Right Grant
- 2001-06-01 BR BRPI0111295A patent/BRPI0111295B1/en unknown
-
2005
- 2005-03-02 US US11/068,856 patent/US7792206B2/en not_active Expired - Lifetime
- 2005-03-02 US US11/068,855 patent/US7844010B2/en not_active Expired - Lifetime
-
2010
- 2010-08-31 US US12/872,193 patent/US8442144B2/en not_active Expired - Lifetime
Patent Citations (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5274844A (en) * | 1992-05-11 | 1993-12-28 | Motorola, Inc. | Beam pattern equalization method for an adaptive array |
US5613219A (en) | 1993-02-05 | 1997-03-18 | U.S. Philips Corporation | Transceiver having plural antennas and adjusting the time delay of transmitted signals to match the time delay of received signals |
US5848103A (en) | 1995-10-04 | 1998-12-08 | Lucent Technologies Inc. | Method and apparatus for providing time diversity |
US5825807A (en) | 1995-11-06 | 1998-10-20 | Kumar; Derek D. | System and method for multiplexing a spread spectrum communication system |
EP0795970A2 (en) | 1996-03-14 | 1997-09-17 | Nec Corporation | Cellular radio system with simulcast transmission of delay-adjusted downlink signals to mobiles via adjacent base stations |
US5999826A (en) | 1996-05-17 | 1999-12-07 | Motorola, Inc. | Devices for transmitter path weights and methods therefor |
US5856804A (en) * | 1996-10-30 | 1999-01-05 | Motorola, Inc. | Method and intelligent digital beam forming system with improved signal quality communications |
US6621877B1 (en) | 1997-01-30 | 2003-09-16 | Motorola, Inc. | Method to train a radio receiver |
US6546236B1 (en) | 1997-08-11 | 2003-04-08 | Ericsson Inc. | Phase-compensating polarization diversity receiver |
US6131016A (en) | 1997-08-27 | 2000-10-10 | At&T Corp | Method and apparatus for enhancing communication reception at a wireless communication terminal |
US5936569A (en) * | 1997-12-02 | 1999-08-10 | Nokia Telecommunications Oy | Method and arrangement for adjusting antenna pattern |
US6185440B1 (en) | 1997-12-10 | 2001-02-06 | Arraycomm, Inc. | Method for sequentially transmitting a downlink signal from a communication station that has an antenna array to achieve an omnidirectional radiation |
US6385181B1 (en) | 1998-03-18 | 2002-05-07 | Fujitsu Limited | Array antenna system of wireless base station |
US6198775B1 (en) | 1998-04-28 | 2001-03-06 | Ericsson Inc. | Transmit diversity method, systems, and terminals using scramble coding |
US6615024B1 (en) * | 1998-05-01 | 2003-09-02 | Arraycomm, Inc. | Method and apparatus for determining signatures for calibrating a communication station having an antenna array |
EP0969610A2 (en) | 1998-07-02 | 2000-01-05 | Lucent Technologies Inc. | Code division multiple access communication with enhanced multipath diversity |
US6307882B1 (en) | 1998-07-10 | 2001-10-23 | Lucent Technologies Inc. | Determining channel characteristics in a space-time architecture wireless communication system having multi-element antennas |
US6438389B1 (en) * | 1998-07-24 | 2002-08-20 | The Board Of Trustees Of The Leland Stanford Junior University | Wireless communication system with adaptive beam selection |
US6584593B1 (en) | 1998-10-02 | 2003-06-24 | At&T Corp. | Concatenation of turbo-TCM with space-block coding |
US6501803B1 (en) | 1998-10-05 | 2002-12-31 | At&T Wireless Services, Inc. | Low complexity maximum likelihood detecting of concatenated space codes for wireless applications |
US6400780B1 (en) | 1998-11-06 | 2002-06-04 | Lucent Technologies Inc. | Space-time diversity for wireless systems |
EP1003297A2 (en) | 1998-11-10 | 2000-05-24 | Lucent Technologies Inc. | Transmit diversity and reception equalization for radio links |
US6128330A (en) | 1998-11-24 | 2000-10-03 | Linex Technology, Inc. | Efficient shadow reduction antenna system for spread spectrum |
US6314305B1 (en) * | 1998-12-10 | 2001-11-06 | Lucent Technologies Inc. | Transmitter/receiver for combined adaptive array processing and fixed beam switching |
US6473393B1 (en) | 1998-12-18 | 2002-10-29 | At&T Corp. | Channel estimation for OFDM systems with transmitter diversity |
US6977910B1 (en) * | 1998-12-31 | 2005-12-20 | Texas Instruments Incorporated | Power control with space time transmit diversity |
US6724828B1 (en) | 1999-01-19 | 2004-04-20 | Texas Instruments Incorporated | Mobile switching between STTD and non-diversity mode |
US6317411B1 (en) | 1999-02-22 | 2001-11-13 | Motorola, Inc. | Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques |
US6348389B1 (en) * | 1999-03-11 | 2002-02-19 | Taiwan Semiconductor Manufacturing Company | Method of forming and etching a resist protect oxide layer including end-point etch |
US6515978B1 (en) | 1999-04-19 | 2003-02-04 | Lucent Technologies Inc. | Methods and apparatus for downlink diversity in CDMA using Walsh codes |
US6594473B1 (en) | 1999-05-28 | 2003-07-15 | Texas Instruments Incorporated | Wireless system with transmitter having multiple transmit antennas and combining open loop and closed loop transmit diversities |
US6067290A (en) | 1999-07-30 | 2000-05-23 | Gigabit Wireless, Inc. | Spatial multiplexing in a cellular network |
US6778507B1 (en) * | 1999-09-01 | 2004-08-17 | Qualcomm Incorporated | Method and apparatus for beamforming in a wireless communication system |
US6584302B1 (en) * | 1999-10-19 | 2003-06-24 | Nokia Corporation | Method and arrangement for forming a beam |
US6549544B1 (en) | 1999-11-10 | 2003-04-15 | Ibiquity Digital Corporation | Method and apparatus for transmission and reception of FM in-band on-channel digital audio broadcasting |
US6788661B1 (en) * | 1999-11-12 | 2004-09-07 | Nikia Networks Oy | Adaptive beam-time coding method and apparatus |
US6351499B1 (en) | 1999-12-15 | 2002-02-26 | Iospan Wireless, Inc. | Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter |
US6298035B1 (en) | 1999-12-21 | 2001-10-02 | Nokia Networks Oy | Estimation of two propagation channels in OFDM |
US6232921B1 (en) | 2000-01-11 | 2001-05-15 | Lucent Technologies Inc. | Method and system for adaptive signal processing for an antenna array |
US6377632B1 (en) | 2000-01-24 | 2002-04-23 | Iospan Wireless, Inc. | Wireless communication system and method using stochastic space-time/frequency division multiplexing |
US7200368B1 (en) * | 2000-03-15 | 2007-04-03 | Nokia Corporation | Transmit diversity method and system |
US6542556B1 (en) | 2000-03-31 | 2003-04-01 | Nokia Mobile Phones Ltd. | Space-time code for multiple antenna transmission |
US6542736B1 (en) | 2000-04-04 | 2003-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Efficient radio link adaptation and base station sector selection in a radio communication system |
US6377819B1 (en) | 2000-04-06 | 2002-04-23 | Iospan Wireless, Inc. | Wireless communication system using joined transmit and receive processing |
US7403748B1 (en) * | 2000-04-07 | 2008-07-22 | Nokia Coporation | Multi-antenna transmission method and system |
US20050157683A1 (en) | 2000-06-02 | 2005-07-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
US7139324B1 (en) * | 2000-06-02 | 2006-11-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
US20030228850A1 (en) | 2002-06-07 | 2003-12-11 | Lg Electronics Inc. | Transmit diversity apparatus for mobile communication system and method thereof |
US20040116077A1 (en) | 2002-08-08 | 2004-06-17 | Kddi Corporation | Transmitter device and receiver device adopting space time transmit diversity multicarrier CDMA, and wireless communication system with the transmitter device and the receiver device |
US20060234789A1 (en) | 2002-11-04 | 2006-10-19 | Vivato, Inc. | Complementary Beamforming Methods and Apparatuses |
US20050037718A1 (en) | 2003-05-15 | 2005-02-17 | Kim Sung-Jin | Device and method for transmitting and receiving data by a transmit diversity scheme using multiple antennas in a mobile communication system |
US8351499B2 (en) | 2008-04-11 | 2013-01-08 | Tektronix, Inc. | Method of identifying inconsistent field dominance metadata in a sequence of video frames |
Non-Patent Citations (17)
Title |
---|
"3GPP RAN S1.14 V2.0.0, UTRA FDD; Physical layer procedures", Apr. 1999, pp. 1-32. |
3G TS 25.214 , Mar. 2000, v3.2.0, pp. 27-31. * |
Heath, Jr., et al: Paper entitled: "Multiple Antenna Arrays for Transmitter Diversity and Space-Time Coding", 1999, IEEE, pp. 36-40. |
Heath, R.W., Jr.; Paulraj, A.; Multiple Antenna Arrays for Transmitter Diversity and Space-Time Coding; Jun. 6-10, 1999, Communications, 1999. ICC '99. 1999 IEEE International Conference on, vol. 1, pp. 36-40. * |
Hottinen, et al: Paper entitled: "Transmit Diversity Using Filtered Feedback Weights in the FDD/WCDMA System", IEEE, Feb. 15, 2000, pp. 15-21. |
International Search Report for PCT/IB2001/00967 mailed on Jun. 21, 2002. |
Jongren, et al: Paper entitled: Combining Transmit Antenna Weights and Orthogonal Space-Time Block Codes by Utilizing Side Information, Signals, Systems, and Computers, IEEE, 1999, pp. 1562-1566. |
Katz et al., "Extension of Space-Time Coding to Beam-forming WCDMA Base Stations", Vehicular Technology Conference Proceedings, V. 2, May 15, 2000, Tokyo, Japan, pp. 1230-1234, XP000968066. |
Katz, Marcos and Ylitalo, Juha, "Beamspace-Time Coding Method for Downlink Performance Enhancement of CDMA Micro/Pico-cell Base Stations," Proceedings of Finnish Signal Processing Symposium, University of Oulu, Finland, May 31, 1999, pp. 25-29. |
Notice of Allowance for U.S. Appl. No. 11/068,856 mailed Feb. 23, 2010. |
Notice of Allowance for U.S. Appl. No. 11/068,856 mailed Jan. 13, 2010. |
Office Action for U.S. Appl. No. 11/068,856, mailed Sep. 17, 2009. |
Official Action from Canadian Patent Office for Canadian Application 2,525,146 dated Mar. 11, 2009. |
Official Action from Canadian Patent Office for Canadian Application 2,526,118, dated Mar. 11, 2009. |
Rhee, Sang-Bin, "Vehicle Location in Angular Sectors Based on Signal Strength", IEEE Trans. Veh. Technol., V. VT-27 (Nov. 1978), pp. 244-258. |
Von Ramm, Olaf T. and Smith, Stephen W., "Beam Steering with Linear Arrays," IEEE Transactions on Biomedical Engineering, Aug. 1983, pp. 438-452, vol. BME-30, No. 8. |
Wichman, et al: Paper entitled: "Transmit Diversity in the WCDMA System", International Journal of Wireless Information Networks, vol. 6, No. 3, 1999, pp. 171-180. |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100081427A1 (en) * | 2007-03-26 | 2010-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and a device for finding imperfections in an rf path |
US8811928B2 (en) * | 2007-03-26 | 2014-08-19 | Telefonaktiebolaget L M Ericsson (Publ) | Method and a device for finding imperfections in an RF path |
US8514693B2 (en) * | 2008-07-11 | 2013-08-20 | Alcatel Lucent | Broadcast and multicast in single frequency networks using othrogonal space-time codes |
US20100008281A1 (en) * | 2008-07-11 | 2010-01-14 | Krishna Balachandran | Broadcast and multicast in single frequency networks using othrogonal space-time codes |
US8693441B2 (en) * | 2010-01-15 | 2014-04-08 | Huawei Technologies Co., Ltd. | Method and user equipment for feeding back multi-cell channel state information |
US20120275420A1 (en) * | 2010-01-15 | 2012-11-01 | Huawei Technologies Co., Ltd. | Method and User Equipment for Feeding Back Multi-Cell Channel State Information |
US20120014525A1 (en) * | 2010-07-13 | 2012-01-19 | Samsung Electronics Co., Ltd. | Method and apparatus for simultaneously controlling near sound field and far sound field |
US9219974B2 (en) * | 2010-07-13 | 2015-12-22 | Samsung Electronics Co., Ltd. | Method and apparatus for simultaneously controlling near sound field and far sound field |
US20140003332A1 (en) * | 2011-11-30 | 2014-01-02 | Broadcom Corporation | Management of Backhaul Nodes in a Microwave Backhaul |
US9794807B2 (en) * | 2011-11-30 | 2017-10-17 | Maxlinear Asia Singapore PTE LTD | Management of backhaul nodes in a microwave backhaul |
US20160131754A1 (en) * | 2013-07-19 | 2016-05-12 | Thales | Device for detecting electromagnetic signals |
US10170833B1 (en) * | 2014-12-19 | 2019-01-01 | L-3 Communications Corp. | Electronically controlled polarization and beam steering |
US10014964B2 (en) | 2016-04-22 | 2018-07-03 | Blue Danube Systems, Inc. | Antenna element self-test and monitoring |
US20180351626A1 (en) * | 2017-05-30 | 2018-12-06 | Motorola Mobility Llc | Method and apparatus for transmitting an output stream of symbols over an antenna port |
US10673510B2 (en) * | 2017-05-30 | 2020-06-02 | Motorola Mobility Llc | Method and apparatus for transmitting an output stream of symbols over an antenna port |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7844010B2 (en) | Closed loop feedback system for improved down link performance | |
US6788661B1 (en) | Adaptive beam-time coding method and apparatus | |
US7664533B2 (en) | Method and apparatus for a multi-beam antenna system | |
US7420945B2 (en) | Communications systems | |
EP1279234B1 (en) | System and method for providing polarization matching on a cellular communication forward link | |
KR20050120441A (en) | Transmission diversity apparatus and method using multiple antenna in a mobile communication system | |
KR20030017946A (en) | Mobile communication apparatus and method including antenna array | |
CA2526118A1 (en) | Closed loop feedback system for improved down link performance | |
Catreux et al. | Enhanced capacity using adaptive transmission and receive diversity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NOKIA NETWORKS OY, FINLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YLITALO, JUHA;KATZ, MARCOS;REEL/FRAME:015812/0606 Effective date: 20000525 |
|
AS | Assignment |
Owner name: NOKIA CORPORATION, FINLAND Free format text: MERGER;ASSIGNOR:NOKIA NETWORKS OY;REEL/FRAME:020749/0016 Effective date: 20010130 Owner name: SPYDER NAVIGATIONS L.L.C., DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NOKIA CORPORATION;REEL/FRAME:020749/0226 Effective date: 20070322 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
CC | Certificate of correction | ||
AS | Assignment |
Owner name: INTELLECTUAL VENTURES I LLC, DELAWARE Free format text: MERGER;ASSIGNOR:SPYDER NAVIGATIONS L.L.C.;REEL/FRAME:026637/0611 Effective date: 20110718 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552) Year of fee payment: 8 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 12 |